Remarks on the Growth Phase of Substorms

Abstract

A pre-bay poleward expansion of 30 > keV electron intensities near midnight is shown to be coincident with the maximum phase of a plasma sheet expansion in the predawn sector of the Vela orbit. A study of simultaneous particle observations by ATS 1 and 5, and of perturbations of the horizontal component of the magnetic field on ground in the auroral zone, shows that one can arrive at two different conclusions about the relevant substorm phase. Based on the results of a multi-satellite study it is suggested to supplement the search for growth phase phenomena by a more general consideration of the varying modes of energy release into the auroral zone.

Copyright information

Authors and Affiliations

About this paper

Cite this paper as:

Rossberg L. (1974) Remarks on the Growth Phase of Substorms. In: McCormac B.M. (eds) Magnetospheric Physics. Astrophysics and Space Science Library (A Series of Books on the Recent Developments of Space Science and of General Geophysics and Astrophysics Published in Connection with the Journal Space Science Reviews), vol 44. Springer, Dordrecht